A strategy for magnetic resonance imaging of the head: results of a semi-empirical model. Part I.
A strategy for magnetic resonance imaging of the head: results of a semi-empirical model. Part I.
复制标题
头部磁共振成像策略：半经验模型的结果。
DOI：
10.1148/radiology.153.2.6484175
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发表时间：
1984
期刊：
影响因子：
19.7
通讯作者：
M. Rzeszotarski
中科院分区：
文献类型：
--
作者：
R. T. Droege;S. N. Wiener;M. Rzeszotarski
本文是一个介绍MR病变检测问题。以前开发的正常解剖结构的数学模型已被扩展到预测的外观中的任何假设病变的磁共振（MR）图像的头部。该模型被应用到选定的临床图像，以证明损失的病变可见性归因于“交叉”和“边界效应”。该模型也被用来解释这些问题的根源，并证明，适当的灰度操作可以解决这些问题。具体而言，脉冲序列，导致病变是最亮的组织在图像中示出，以消除交叉和边界效应的问题。
This paper is an introduction to lesion detection problems of MR. A mathematical model previously developed for normal anatomy has been extended to predict the appearance of any hypothetical lesion in magnetic resonance (MR) images of the head. The model is applied to selected clinical images to demonstrate the loss of lesion visibility attributable to "crossover" and "boundary effect". The model is also used to explain the origins of these problems, and to demonstrate that appropriate gray-scale manipulations can remedy these problems. Specifically, pulse sequences that cause lesions to be the brightest tissue in the image are shown to eliminate the problems of crossover and boundary effect.